Advantage Red is a monthly spot-on flea treatment from Elanco, formulated for large dogs weighing 10–25kg. Applied directly to the skin at the back of the neck, it provides a full month of flea protection with a single dose.

The active ingredient imidacloprid spreads through the oily layer of the skin rather than entering the bloodstream. It kills adult fleas within hours, stops fleas biting within 3–5 minutes of contact, and also targets flea larvae and eggs to break the re-infestation cycle. Waterproof once dry.

Owners reach for Advantage when they want a flea-only treatment that's simple to apply and consistently effective. The spot-on format avoids the compliance issues that come with tablets, and the monthly dosing interval keeps the schedule straightforward.